I've got three questions about clause elements:
1. Can there be an object with an intransitive verb?
For example: I am waiting for it.
Is “it” an object? If not, what type of clause elements is “it”?
2. What complements or objects can a clause have if the predicate is an intransitive verb?
3. What is the difference between adverbial and adverbial complement?
For example, what are the clause elements it these sentences:
Who's that hardly pounding on the door?
We loudly talked with him about the weather.
I am only waiting for this moment to be free.
Ah, and some more questions:
3. Are complements a part of a predicate?
4. Is object always a complement?
5. Do modifier and adverbial mean for the same thing?
6. Can adverbial or modifier be a part of a predicate? If yes, in what (which?) cases?
Thank you very much!
P.S. If it is not (a?) very tiring work, I would be very glad to see if I made any mistakes (errors?) in my letter

)
Thanks in advance!